Dia Bras Reports More High-Grade Gold Samples at the La Cascada High-Sulfidation Gold Prospect at the Bolivar Property

MONTREAL, QUEBEC, Apr 06 (MARKET WIRE) --
Dia Bras Exploration Inc. (TSX VENTURE: DIB) is pleased to report more
assay results from the La Cascada high-sulfidation gold prospect of its
Bolivar property in Chihuahua State, Mexico. La Cascada is located only
2.5 km south of Dia Bras' support and maintenance facilities at its
Cieneguita camp.

"These results reinforce our earlier data that show La Cascada is a
significant gold prospect," stated Daniel Tellechea, President and CEO.
"These latest sample assays demonstrate that the silicified and
brecciated bedrock consistently returns potentially-economic grades of
gold, with values in outcrop up to 7 g/t gold. We have high grades of
gold in outcrop over a distance of 2,500 metres, an indication of the
breadth and strength of this mineralized area. Even though results from
another 35 samples from La Sidra are yet to be received, we are convinced
that this area is an important prospect, and we are proceeding with a
geophysical survey that will assist in defining drill targets."

Table 1 below shows selected results from samples collected from the more
altered rocks at La Cascada. Complete results are given in the
accompanying map
(http://www.diabras.com/en/newscenter/2010/Cascada_Update.pdf) that shows
sample locations and alteration patterns, and a complete list of the
results from the newly-received 70 samples is in the accompanying table
(http://www.diabras.com/en/newscenter/2010/La_Cascada_samples.xls).

Table 1: Selected Samples from La Cascada Prospect, Bolivar Property

----------------------------------------------------------------------------

Au Ag As Ba Cu Pb Sb Zn
SAMPLE WIDTH TYPE g/T g/T ppm ppm ppm ppm ppm ppm
----------------------------------------------------------------------------
710063 1 Chip Rock 0.6 0.4 13 1,040 17 829 2 105
----------------------------------------------------------------------------
710070 1 Chip Rock 1.8 19.5 74 260 840 2,170 2 325
----------------------------------------------------------------------------
710071 3 Chip Rock 2.5 26.2 9 30 54 31 2 259
----------------------------------------------------------------------------
710077 1.1 Channel 0.8 196 156 90 2,970 38,400 2 828
----------------------------------------------------------------------------
710079 1.4 Channel 0.6 225 69 650 5,590 25,000 2 6,740
----------------------------------------------------------------------------
710081 1 Chip Rock 0.9 227 134 1,020 3,800 9,410 2 1,050
----------------------------------------------------------------------------
710082 2.1 Chip Rock 0.4 44.4 37 1,420 111 969 2 1,630
----------------------------------------------------------------------------
710083 3 Chip Rock 0.6 43.2 54 890 84 1,035 2 960
----------------------------------------------------------------------------
710093 1 Chip Rock 0.4 6.4 93 10 55 127 6 114
----------------------------------------------------------------------------
710213 3 Chip Rock 5.3 73.7 30 10 6,520 79,600 60 111,500
----------------------------------------------------------------------------
710214 3 Chip Rock 7.2 104 10 40 5,280 88,800 108 95,900
----------------------------------------------------------------------------
710215 7 Chip Rock 3.6 45.7 11 80 1,375 34,300 43 46,200
----------------------------------------------------------------------------
710220 5 Chip Rock 2.9 252 62 20 1,580 3,060 30 713
----------------------------------------------------------------------------
710224 1 Chip Rock 1.2 12.6 261 10 191 545 2 70
----------------------------------------------------------------------------
710225 2 Chip Rock 4.0 63.6 249 50 275 1,015 37 86
----------------------------------------------------------------------------

The zone of high-sulfidation gold mineralization is characterized by
an extensive zone of strong, advanced argillic alteration of the host
andesite extending at least 6 km2 that contains areas of silicification,
and the zone is open in several directions. The silicified zones are
structurally controlled and occur as concentric zones of silicification
expressed by an outer zone of granular silica replacement of andesite, an
intermediate zone where silicification has destroyed feldspars and
original textures, and a core zone of vuggy silica where all original
features of the host rock have been destroyed. An interpretive section is
available at the following link:
http://www.diabras.com/en/newscenter/2010/sidra_section.pdf. La Cascada
is located only 5.5 km to the NE of EXMIN's Reyna de Oro gold prospect
and appears to be related to the Reyna de Oro in a long system with
multiple zones of gold mineralization along the trend.

The La Cascada mineralization has characteristics similar to several
multi-million ounce high-sulfidation gold deposits, such as the gold
association with structurally controlled vuggy silica zones, the style of
alteration zonation, association with copper and arsenic, presence of
pyrophyllite, etc. La Cascada is notably similar to the El Sauzal
deposit, which is located less than 20 km to the southeast and is on the
same regional, NNW-trending major structural zone.

Method of analysis

Samples were prepared at the ALS Chemex lab facility in Chihuahua,
Mexico, and analyzed by ICP and AA methods at their facilities in
Vancouver, Canada. Samples sent for analysis were prepared by the ALS
Chemex sample preparation laboratory in Chihuahua, Mexico, and assayed
for Au by 50 g fire assay with AA finish, and for Ag by AA on 50 g split
sample at the ALS Chemex North Vancouver Laboratory. Assays for Pb, Zn
and Cu are done by Induction Coupled Plasma (ICP) at ALS Chemex.

Quality control

The quality assurance-quality control (QA-QC) program employed by Dia
Bras has been described in detail in both RPA's NI 43-101 reports of
December, 2006, at Cusi and October, 2005, for Bolivar.

The technical content of this news release has been approved by Thomas L.
Robyn, Ph.D., CPG, RPG, a Director of Dia Bras, a Qualified Person as
defined in NI 43-101.

About Dia Bras

Dia Bras is a Canadian exploration mining corporation focused on precious
and base metals in Chihuahua State and other areas of northern Mexico.
The Corporation is committed to developing and adding value to its most
advanced assets - the Bolivar copper-zinc project and the Cusi silver
mining camp. The Corporation's shares trade on the TSX Venture Exchange
under the symbol "DIB".

For further information on Dia Bras Exploration Inc. visit
www.diabras.com

Forward-looking statements:

Except for statements of historical fact all statements in this news
release without limitation regarding new projects, acquisitions, future
plans and objectives are forward-looking statements which involve risks
and uncertainties. There can be no assurance that such statements will
prove to be accurate; actual results and future events could differ
materially from those anticipated in such statements.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as
that term is defined in the policies of the TSX Venture Exchange) accepts
responsibility for the adequacy or accuracy of this news release.

Contacts:
Dia Bras Exploration Inc.
Daniel Tellechea
President & CEO
514-393-8875 ext. 241

Dia Bras Exploration Inc.
Karl J. Boltz
Vice President, Corporate Development
1-866-493-9646

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